What are some best practices for managing arrays in PHP to optimize performance?

When managing arrays in PHP, it is important to optimize performance by using efficient methods to manipulate and access array elements. One best practice is to avoid unnecessary looping over large arrays, as this can impact performance. Instead, consider using built-in array functions like array_map, array_filter, and array_reduce to perform operations on arrays more efficiently.

// Example of using array_map to manipulate array elements efficiently
$numbers = [1, 2, 3, 4, 5];
$multipliedNumbers = array_map(function($num) {
    return $num * 2;
}, $numbers);

print_r($multipliedNumbers);